
In this work we consider the fluctuation \(|p\rangle \rightarrow |\pi ^+ n\rangle \)  and
\(|p\rangle \rightarrow |\pi ^- \Delta ^{++}\rangle \) .
For the above proton composite state, the LCWFs can be calculated from the following matrix elements [1]}, [2]}, [3]}
\(&\psi ^{\lambda _N}_{{\lambda _B}{\lambda _q}{\lambda _{\bar{q}}}}(r,k)\\=&\sqrt{\frac{r^+}{(P-r)^+}}\frac{1}{r^2-m_\pi ^2}\overline{U}_B(P-r,\lambda _B)\gamma _5U(P,\lambda _P)\nonumber \\&\times \sqrt{\frac{k^+}{(r-k)^+}}\frac{1}{k^2-m^2}\overline{u}(r-k,\lambda _q)\gamma _5\nu (k,\lambda _{\bar{q}})\\=&\psi ^{\lambda _N}_{\lambda _B}(y,r_T)\psi _{{\lambda _q}{\lambda _{\bar{q}}}}(x,y,k_T,r_T),\) 
